A portable application can be run from a removable drive (USB flash drive, iPod, portable hard drive, etc) on any Windows computer without installation.
You will carry the program with settings on removable drive and don't modify settings on host computer.
On Vista and above turn off User Account Control (UAC) or run launcher as admin.

Extract and run IsoBusterPortable.
Language set by launcher according UserDefaultLang (if you don't want: write UserDefaultLang=false in IsoBusterPortable.ini).
Settings of installed IsoBuster should be preserved.

If you need to run several instances change AllowMultipleInstances from false to true in TotalCommanderPortable.ini.If you have Notepad++Portable or UltraEditPortable in the same foder as TotalCommanderPortable you can choose one of them as default editor (F4) by changing one (not two) false to true in TotalCommanderPortable.ini.